130020202421 has 4 divisors (see below), whose sum is σ = 130023247200. Its totient is φ = 130017157644.

The previous prime is 130020202381. The next prime is 130020202423. The reversal of 130020202421 is 124202020031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 130020202421 - 2³⁰ = 128946460597 is a prime.

It is a super-2 number, since 2×130020202421² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130020202421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130020202423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1457411 + ... + 1544048.

It is an arithmetic number, because the mean of its divisors is an integer number (32505811800).

Almost surely, 2^130020202421 is an apocalyptic number.

It is an amenable number.

130020202421 is a deficient number, since it is larger than the sum of its proper divisors (3044779).

130020202421 is an equidigital number, since it uses as much as digits as its factorization.

130020202421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3044778.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 130020202421 its reverse (124202020031), we get a palindrome (254222222452).

The spelling of 130020202421 in words is "one hundred thirty billion, twenty million, two hundred two thousand, four hundred twenty-one".